Combustion chamber for domestic oil burners and the like



Sept. 16, 1952 2,610,594

COMBUSTION CHAMBER FOR DOMESTIC OIL BURNERS AND THE LIKE Filed Jan. 19,1951 INVENTOR.

JOHN N. HAUCK ATTORNEY.

Patented Sept. 16, 1952 TQOMLBUSTIONTCHAMBER Fom'iioMEsmc OIIIBURNERSANDITHELLIKE JohnsNiflaucka'Red'flill, Pa,;iassignor td"olumi-biaBoilerrflompany, PottstownfiBa, .aecopart apiflieafimi sanueti-19,195,1,=S.eri,al.No. 20,6,857

It is a further object of the present inventiontoz'provide animprovedioil burner flange for "disc" withicombustionlchambersioftheic'haracter saforesaid. 1

, -0therfobjects and advantageous features "fOf t'the invention will beapparentfrom the'i'speci-' :fication and claim. Y

' JThe'nature and characteristic:featuresioflithe rinvention will bemore readily: understood'ffro'm the following description, taken inconnection with the accompanying drawings forming part hereof, in which:

Figure 1 is a vertical central section View taken from front to rear ofthe lower portion of a domestic heating boiler having a combustionchamber and flange in accordance with the present invention;

Fig. 2 is a horizontal sectional view taken approximately onthe line 2-2of Fig. 1;

Fig. 3 is a view in perspective of the flange removed from the frontwall of the boiler ;.and

Fig. 4 is a perspective view of the combustion chamber removed from theboiler.

It should. of course, be understood that the description and drawingsherein are illustrative merely and that various modifications andchanges can be made in the structure disclosed without departing fromthe spirit of the invention.

Like numerals refer to like parts throughout the several views.

Referring now more particularly to the drawings, a domestic heatingboiler is shown generally at IU, with side walls II and I2, front andrear walls I3 and I4 extending between the side walls I I and I2, and abottom wall or floor I5 connected to the side walls II and I2 and to therear wall I4. The walls are preferably of metal and connected at theirmeeting edges by welding. A removable lower front wall plate I 6 is alsoprovided, held in position by studs 9, and has an opening 29therethrough.

ti -claim. (615110-286) I "the -spaceabove"thebottom wall "l5 ffb'etweenthe-front-wall "plate-l3and the fear wall rand between 'thaside'-wa' llsI hand I 2,:a combustion chamber "'I I "of1refra'ctory"materialf'isfproyided. The "combustion chamber "I Iispreferably made "in two parts; constituting front" and "rear sec'tions I 8'" and- I9, forease of moulding.

The rear section I 9 ."pref-erably has an: upper flat face *ZWw'ith ani'nclined' edge 2' l' extendin downwardly'therefrom, and has'anfintegralrear -wa1122} bottom"w'all 23 aridbidWWfllszl an'd 25.

the portions of the rear section 'l a' at" the ex- -teri'orcorners'provided by" the junction 'side' walls 24 'and '2'5-wit-h "-the*rear'wal1 22 the material exterids outwardlysoas' to' be a'line with therear wall I4 and side walls II and -I'2""- to:'prowide *a 'stron'gcorner construction. "Therearwall 22i between-the ends," has aportionremoved during casting to 'provi'de an air'space 6- "in ffront c'if therear wall I4. Along the side walls-24='and 25 'L part of the materialis' zalsoiremove'dduring the "casting l to provide *side air ="spaces2'! and 28.

At the ifront edgei of the rear section lil, 'a' v- Jshaped' bead -'ortongue 3 0' is providedyextending :downwardly along th'ei front'faces'of 'the' side walls 24 and 25 and the front face of the bottom 'wall 23for engagement in a complemental groove 3| formed in the rear faces ofthe front section I8.

The front section I8 has side walls 32 and 33 corresponding to andalined with the side walls 24 and 25, and a bottom wall 34 correspondingto and alined with the bottom wall 23. The side walls 32 and 33 haveexterior portions thereof removed during casting to provide side airspaces 35 and '36 respectively alined with the air spaces 21 and 28.

The bottom walls 23 and 34 also have exterior portions removed duringcasting to provide bottom air spaces 37 and 38.

The front section l8 has a front wall 40 which at its junction with theside walls 32 and 33 has the exterior corners thereof with portionsextending into contact with the side Walls II and I 2 and the frontplate Hi.

The front section I8 has an exterior central front wall panel 4| whichmay be offset rearwardly from the front plate IB for purposes to beexplained. The front wall 40 may be relieved, during casting, at thesides of and below the front wall panel 4| to provide front side andfront lower air spaces 42 and 43.

The front wall 40 at the panel 4| is provided with an opening 44extending from the front to the rear thereof for the reception of aburner nozzle or blast tube 45, which may be cemented in place, and at aplurality of locations concentric therewith has openings 46 extendingtherethrough for the delivery of air around the stream from the blasttube 45. The rear ofi'setting of the panel 41 permits of access of airto the openings 46.

The front plate l5, in order to provide proper support for the alinementof the blast tube 45 is preferably provided with a flange 50 having ahollow cylindrical portion 5| for engagement with or securing to theblast tube 45 and a radially ex-' tending portion 52 which is adaptedtobe clamped, by bolts 53 extending through bolt holes 54, to

boiler and having a front wall with an opening therethrough for thereception of a burner, a front wall plate exteriorly disposed withrespect to the front wall of said combustion chamber casing and havingan opening therethrough for the burner, the interior diameter of saidcasing opening being greater than the exterior diameter of said burnerto provide an air passageway, the front the front plate l6. On the rearface of the radially extending portion 52 of the flange 50, a plu ralityof radial slots 55 are provided for access of air to the opening 29 inthe plate l6 and therefrom to the openings 46.

The mode of use, will it is thought, be apparent from the foregoing butit may be noted that with an oil burner in operation, flame and themixture of burning fuel and air from the blast tube 45 enters thecombustion chamber l1 substantially horizontally and then passesupwardly for heat exchange with the heat transfer surfaces (not shown)of the boiler l0, disposed thereabove. As the burning continues, air isinspirated through the slots 55, past the edge of the opening 29 andthrough the openings 46 into the combustion chamber l'l around the flameand burning combustible material from the blast tube 45.

The introduction of air in this manner has been found to stabilize thecombustion, to reduce the tendency to pulsations observed with varioustypes of burners now employed, and to reduce the noise attendant uponthe combustion with burners now available. 7

The exterior air spaces around the combustion chamber increase its life,reduce its weight and reduce the heating of the exterior walls.

- I claim:

In a boiler having a plurality of vertical side walls, a combustionchamber casing of refractory material at the lower portion of saidwalls. said combustion chamber casing being open at the top for deliveryof combustion gasesto the wall of said combustion chamber casing havingportions thereof spaced from said front wall plate to provide an airpassageway in communication with said first mentioned air passageway, aburner supporting member having a cylindrical portion for supportingengagement with the burner and having a flange portion extendingoutwardly from said cylindrical portion and secured to said front JOHNN. HAUCK.

REFERENCES orrnn The following references are of record in the file ofthis patent:

UNITED STATES PATENTS I Date Number Name 2,096,586 Johnson Oct. 19, 19372,126,417 Sharp Aug. 9, 1938 2,164,954 Stephens July 4, 1939 2,192,752Miller Mar. 5, 1940 2,240,531 Walker May 6, 1941 2,263,098 Mueller 1Nov. 18, 1941 2,527,937 Klug Oct. 31, 1950

